"Project Assignment" would be to develop a (Marketing Plan) for your "company" (your own creation). Your Marketing Plan must contain the "five basic elements" of a Marketing Plan. Within each of the five elements there are sub-elements which are very important to cite and develop.
There is "no limit" as to the number of pages to be written/submitted; (You should not copy/paste any "Marketing Plan" from other authors) originality and completeness of your Marketing Plan is what is important for your overall grade.